Improvement in modes of attaching lips and strainers



UNITED STATES PATENT OFFIon.

FREDERICK Gr. NIEDRINGHAUS AND WILLIAM F. NIEDRINGHAUS, OF ST.

, LOUIS, MISSOURI.

IMPROVE M ENT IN MODES OF ATTACHING LIPS AND STR AINERS.

Specification forming part of Letters Patent N 0. 186,433, dated January 23, 1877; application filed December 12,1876.

To all whom it may concern:

Be it known that we, FREDERICK G. N IED- RINGHAUS and WILLIAM F. N IEDRINGHAUS, of St. Louis, Missouri, have made a new and useful Improvement in the Mode of Attaching Lips and Strainers to Coffee-Boilers and similar vessels, of which the following is a full, clear, and exact description, reference being had to the annexed drawing, making part of this specification, in which- Figure I is an elevation, partly in section, of a vessel embodying our improvement; Fig. 2, a view of that part of the vessel to which the lip is attached; Fig. 3, aview of the strainer; Fig. 4:, a view of the lip from the inner side; Fig. 5, a cross-section on the line as a: of Fig. 1; Fig. 6, a section on the line 3 y of Fig. 1, and Fig. 7 a view from the inner side of that part of the vessel that is immediately above the lip-opening.

Similar letters refer to similar parts.

In making coffee-boilers, milk-buckets, and similar vessels it has been customary to attach the lip to the body ofuthe vessel by solrdering. This method answers with vessels completed in the ordinary manner; but when they are finished by coating them with enamel, involving their subjection to a highdegree of heat, the solder melts, and is insuiflcient for holding the lip in place. To overcome this difflculty, and to provide a mode by which the lip of a vessel subsequently finished with enamel can be economically and securely attached, is our present aim.

In the annexed drawing, A represents a vesselsuch as a coffee-boiler-embodying our improvement. B represents the lip. The body a of the vessel, as shown in Fig. 2, is first prepared by making an opening, a, in the wall of the vessel of the shape and size, or thereabout, of the intended lip. At the sides of this opening similar flanges a a are respectively formed by turning the metal out ward and back over the body a. Above the top of the opening a lip, a beginning near the top of the vessel. projects outwardly, and then downward to the opening.

edges 0 o to coincide, when the strainer is in place, with the edges of the flanges a a Its lower edge c is even, or thereabout, with the bottom of the opening (1 and its upper edge 0 extends above the top of the opening.

The lip and strainer are attached as follows The strainer is placed over. the opening a upon the flanges a a its upper edge 0 being slipped under the lip a and upon the ad jacent parts a a. of-the vessel, and as shown in Figs. 1 and 5. The lip B is then attached by sliding it suitably upward, so as to cause the flanges I) b to interlock with the flanges a. 0, as shown in Figs. 1 and 5. The flanges b b at the sides of the lip, and the flange l) at the lower end of the lip, are then closed down upon the body a, and two rivets, D D, are, preferably, passed through the upper ends, respectively, of the flanges b b and the body a. By this means the various parts are firmly locked together. The vessel is enameled, in which process the joint around the lip is made tight, and the vessel finished.

The lip B can be attached independently of the strainer; and in such case the flanges b b bear directly upon the flanges a a If desired, the opening a may be so shaped as to bring the lower ends of the flanges a a together.

What we claim isy The combination of the vessel A, lip B, and strainer G, substantially as described.

F. G. NIEDRIN AUS. WM. F. NIEDRI GHAUS.

Witnesses:

SAML. S. BOYD, Orms. D. MOODY. 

